Playing Xbox Music Pass Offline

Does anyone have any issues when trying to play their xbox music pass collection offline from their Surface RT? I can play the music for about 2 hours, it then stops working, my collection dissappears and then it asks me to sign in. I would if I could but I don't have a conenction near me that I can use at work.

What is your history with your RT, your collection, and the app? Always more difficult to respond, help without any context.

No issues here: I played my collection for about four hours today without interruption, although it does go into sleep mode with no other activity besides the music playback. I hadn't used the music app for a while, and it updated during the first minute or so of launch. Good luck getting past your issue.